2002 7.3L DIESEL PROBLEMS

Reply Subscribe

Thread Tools

Search this Thread

Dec 16, 2009 | 09:44 PM

KEITHM1

Thread Starter

New User

Joined: Dec 2009

Posts: 3

Likes: 0

2002 7.3L DIESEL PROBLEMS

I JUST BROUGHT A USED 2002 F550 7.3L DIESEL MANUAL TRANS TRUCK. IN THE MORNING OR WHEN THE TRUCK HAS BEEN SITTING, WHEN STARTED TRUCK PUFFS WHITE SMOKE TILL WARMED UP. ALSO, BURNS 1-2 QTS OIL EVERY 1000 MILES OR SO. LOSING HORSEPOWER. OIL ON DIPSTICK LOOKS THIN/WATERY. WHAT MIGHT BE THE PROBLEM?

Dec 16, 2009 | 11:16 PM

patrickke

Posting Guru

Joined: Nov 2008

Posts: 1,637

Likes: 1

From: Lexington,Ky / Owensboro

hey, welcome to FTE If I were you I would move this down to the 7.3 forum... Good luck

Dec 17, 2009 | 12:17 AM

LuckyDog1949

Junior User

Joined: Mar 2007

Posts: 58

Likes: 0

From: On the road.

If you haven't done so, yet, I'd change all fluids and filters, following Fords specs. The white smoke is probably unburned fuel, and the oil usage could be leakage as easily as anything else. Clean the engine off really well and start looking for leaks. Leaks would most likely show up in the valley on top of the engine, at the valve covers, or at the backs of each head where there are drain plugs. If the HPOP (High Pressure Oil Pump) is leaking oil, that could account for your power loss. The HPOP is on the top of the engine, at the front of the valley. So long as the oil isn't milky looking, it's probably either a 5W40 oil, or it's just been in the engine too long. If it is milky, then you could have problems with the head gaskets, a cracked block, or pin holes in the cylinder walls. Good luck.

Dec 17, 2009 | 06:24 AM

F350-6

Post Fiend

Joined: Mar 2007

Posts: 26,966

Likes: 50

From: Texas

Welcome to FTE. As LuckyDog said, change the fluids and filters first. Low oil or the wrong type can cause a power loss. Let us know if there are any signs of oil in the bottom of the fuel filter bowl.

Dec 17, 2009 | 06:57 AM

papadelogan

Snowboard season cometh..

Joined: Jan 2006

Posts: 5,406

Likes: 1

From: Gulf Coast of Florida

KEITHM1 - where are you located? You might have a member close enough to you that could lend a hand. You have to wait until you have 25+ posts before you can add a signature or get PMs (Private Messages) but you should be able to add your location.

Welcome to FTE!! and congrats on getting (IMHO!) the best engine Ford put under the hood of a Super Duty!